Shapton RockStar offers powerful sharpening capabilities, ideal for the hardest blades (like R2/SG2, ZDP189, Hap40, etc.), paired with the finesse of a delicate, uniform finish. The Shapton RockStar doesn’t require soaking as other Shapton series, ensuring quick use and improvement of work efficiency. With its high degree of uniform abrasiveness, the RockStar excels in creating an edge faster and maintains longevity, akin to Glass Stones, inheriting their excellent features.

Specifications

• Material: Ceramic
• Dimensions: 210mm x 70mm x 10mm ht (8.25″ x 2.75″ x 0.4″ ht)
• Grit: #4000 (3 micron class) – A micron is one-thousandth of a millimeter
• Sapton RockStar Series

Difference between the RockStar and GlassStones/Kuromaku

The RockStar series comprises 10mm solid sharpening stones of a high-quality equivalent to those in the GlassStone series. The GlassStone series products feature 5 mm tempered glass laminated to 5 mm sharpening stones. The Traditional (KUROMAKU) series comprises solid 15 mm sharpening stones with a plastic storage case. All stones do not need to be soaked before use.

How to Use Shapton RockStar Stone

Before Use

• No soaking required Unlike traditional whetstones, Shapton RockStar stones require little to no soaking before use.
• Splash water onto the surface before sharpening. If the stone feels dry, apply more water as needed.

After Use

• Do not keep soaking after use.
• Store in a dry, well-ventilated area to prevent cracking or warping.

Additional care

• Flatten the stone periodically using a lapping plate or stone fixer to maintain a level surface. Use light, even strokes to avoid unnecessary wear on the stone.